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12-07-2010, 03:03 AM
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Senior Member
2004 Ford F-150
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Join Date: Jul 2009
Location: New Jersey
Vehicle: 2004 FORD F150
Posts: 791
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Need Help with Spark Plug Fireing order On 1995 Bronco
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SO i picked up this bronco a few weeks ago and i didnt have time to take a real good look at it till this past weekend...Now i know the guy b4 me put a rebuilt 302 in it only porblem is the truck runns like dog **** and what i have noticed compared to other broncos at the junk yard is that the spark plug wires dont run to the same spark plugs as a bronco in the junk yard so i'm possitive whent he guy put the new motor in that he ****ed up where the spark plugs went to...does anyone know of a Diagram i can use to fix this or if anyone has a 302 can they take a pic of where the plugs go to so i can take my lab top out to my truck and correct the order....thanks
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__________________
 Thanks Watson91 for The Sig!
2004 Super Crew Flomaster, 6in Procomp lift Gryphon 18x9" Procomp Extreme Alloy 1079 325X65R18 TOYO Open Country AT, Crome Sports bar KC lights MP3 CB K&N CAI PROCOMP skid plate Procomp light bar Rhino lined bed Tow Nutz, LED Tailgate Bar, Bug Shield Carbon Fiber Dash Kit, 2 12" Pioneer TS-SW1201S2 Shallow Sub Woofers, Sony CDX-GT630UI HeadUnit 5901 Viper Alarm system Deleted Rear Cats Magnaflo hiflow 2 front cats
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12-07-2010, 03:19 AM
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I believe the regular 302 and the HO have different firing orders. Hopefully Steve83 will be along with his comprehensive diagrams.
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2003 F-150 XL RCSB 2wd 4.2 M5OD 3.55 LS
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12-07-2010, 04:16 AM
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Senior Member
2004 Ford F-150
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Join Date: Jul 2009
Location: New Jersey
Vehicle: 2004 FORD F150
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HO? hopefully something has something
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Thanks Watson91 for The Sig!
2004 Super Crew Flomaster, 6in Procomp lift Gryphon 18x9" Procomp Extreme Alloy 1079 325X65R18 TOYO Open Country AT, Crome Sports bar KC lights MP3 CB K&N CAI PROCOMP skid plate Procomp light bar Rhino lined bed Tow Nutz, LED Tailgate Bar, Bug Shield Carbon Fiber Dash Kit, 2 12" Pioneer TS-SW1201S2 Shallow Sub Woofers, Sony CDX-GT630UI HeadUnit 5901 Viper Alarm system Deleted Rear Cats Magnaflo hiflow 2 front cats
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12-07-2010, 12:10 PM
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1990 F150XLTLariat. 300I6. M5OD. HURST! 3.55LS.
BDS six inch long arm lift. 36x16.5x15 Kevlar fun country.
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12-07-2010, 12:53 PM
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Senior Member
1996 Ford F-150
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Join Date: May 1999
Location: Copley, Ohio
Vehicle: 1996 Ford F150
Posts: 2,445
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If you have no idea which firing order you have. pull the spark plugs, stuff a small wad of tissue in spark plug hole #1 and turn the engine over by hand till the tissue pops out. you are at TDC on #1. Then without moving the engine further stuff a similar wad of tissue in both #3 and #5. Turn the engine by hand until one of them pops out.
If #3 comes out first your order is 1-3-7-2-6-5-4-8 (302 "HO" and late model EFI)
If #5 comes out first your order is 1-5-4-2-6-3-7-8 (302 "standard")
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1996 F-150 XLT, reg. cab 6.5' box, 4.9 I6. E4OD w/ B&M alum sump, auxiliary cooler and external filter, Addco 1" sway-bars F&R, Bilstein shocks, 16 x 8 AR Bajas w/255/70-16s, Line-X spray in liner, hinged tonneau, Reese hitch and electric brake controller, VDO tranny and engine oil temp gages, stainless pushbar, Hella 550 fog and driving lights, Hella backup/work lights, 3.73 Trac-Lok w/ an alum. diff. cover with cap support screws, PFC "Z" brake pads, high flow cat with a 2.5" cat back with a FM 70 muffler.
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12-07-2010, 01:26 PM
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Way back in the old days, they used to stamp the firing order on the intake manifold - would the 302's have that somewhere? Or are we setting ourselves up for a problem here due to possible parts swaps.........
If you follow SR's procedure, make sure you are turning the engine the right direction!
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2003 F-150 XL RCSB 2wd 4.2 M5OD 3.55 LS
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12-07-2010, 01:56 PM
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Senior Member
1996 Ford F-150
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Join Date: May 1999
Location: Copley, Ohio
Vehicle: 1996 Ford F150
Posts: 2,445
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The order is still cast into the intake but...
if the PO rebuilt the engine, who knows what mixture of parts he used?
Probably better to check than to assume the guy knew what he was doing
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1996 F-150 XLT, reg. cab 6.5' box, 4.9 I6. E4OD w/ B&M alum sump, auxiliary cooler and external filter, Addco 1" sway-bars F&R, Bilstein shocks, 16 x 8 AR Bajas w/255/70-16s, Line-X spray in liner, hinged tonneau, Reese hitch and electric brake controller, VDO tranny and engine oil temp gages, stainless pushbar, Hella 550 fog and driving lights, Hella backup/work lights, 3.73 Trac-Lok w/ an alum. diff. cover with cap support screws, PFC "Z" brake pads, high flow cat with a 2.5" cat back with a FM 70 muffler.
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12-08-2010, 12:05 AM
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Senior Member
1983 Ford Bronco
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Join Date: Nov 2006
Location: Memphis, TN 38135, USA, Earth
Vehicle: 1983 Ford Bronco
Posts: 5,334
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HO has no effect on firing order; it's strictly the year for all truck engines.
But there's no telling what engine is in the truck now, so you'll have to physically confirm which firing order the cam is by using SR's procedure (or something similar).
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12-09-2010, 04:29 AM
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Senior Member
2004 Ford F-150
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Join Date: Jul 2009
Location: New Jersey
Vehicle: 2004 FORD F150
Posts: 791
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thanks i'll give it a try
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Thanks Watson91 for The Sig!
2004 Super Crew Flomaster, 6in Procomp lift Gryphon 18x9" Procomp Extreme Alloy 1079 325X65R18 TOYO Open Country AT, Crome Sports bar KC lights MP3 CB K&N CAI PROCOMP skid plate Procomp light bar Rhino lined bed Tow Nutz, LED Tailgate Bar, Bug Shield Carbon Fiber Dash Kit, 2 12" Pioneer TS-SW1201S2 Shallow Sub Woofers, Sony CDX-GT630UI HeadUnit 5901 Viper Alarm system Deleted Rear Cats Magnaflo hiflow 2 front cats
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12-09-2010, 04:29 AM
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